Light-absorbing filter for automobiles



; UNITED STATES CHARLES D. SW8, 0! SIOUX FALLS, SOUTH DAKOTA, ASSIGNOB TO mm. L. SYKHS',

OF SIOUX FALLS, SOUTH DAKOTA.

PATENT OFFICE.

LIGET-ABSOBBING FILTER FOB AUTOMOBILE.

Application filed larch 28, 1924. Serial ll'o. 702,521.

To all whom it may concern:

Be it known that I, (-HARLEs D. SYMMs, a citizen of the United tates, residing at Sioux Falls, in the county of Minnehaha and State of South Dakota, have invented certain new and useful Improvements in Light- Absorbing Filters for Automobiles, of which the following is a specification.

This invention relates to improvements in light absorbing devices for automobiles, and has for its object to provide an improved construction of the same whereby it may be firmly supported by suction upon the windshield of the automobile and without placing any distortional strain upon the translucent medium forming the shield proper.

This object I accomplish in the manner and by the means hereinafter described and claimed, reference bein had to the accompanying drawing, in w 'ch:

Fig. 1 is a front elevation of the device.

Fig. 2 is a central diametric section.

Fig. 3 is a similar view showing the device applied-to a wind shield.

In all the views the same reference characters'indicate similar parts.

a soft rubber ring 5 and a disk 6 of translucent, light absorbing or filtering material such, for example, as colored glass or the like. I have found from a practical application of an embodiment of my invention that a disk of red glass is amply opaque to satisfactorily protect the eyes and sufficiently transparent to ermit objects to be observed when looking tlirough it into fields less brilliantly lighted.

The device is held on the glass Windshield by effect of external air pressure due tothe tendency to form a vacuum'under the skirt 7 of the ring 5.

The glass late 6 is enclosed in a groove 8 made in the ead 9. A relatively rigid ring 10 is molded in the head to prevent distortion of the groove 8 when the skirt 7 is flattened out, as shown in Fig. 3. The ring may be of any suitable material. A wire, cable or cord serves the purpose.

An annular bead 11 is formed inside the skirt 7 near the head 9. Thefunction of this head is apparent from an inspection of Fig. 3.

The device is to be applied to the glass 12 of a windshield. To make it adhere to the rlass it is placed on the inner surface with. ihe disk 6 arallel with the glass 12. Pressure is app ied by one hand to ush the disk bead 11, the result of which is the device is a 7 i made to cleave to the glass by effect of at mospheric pressure.

If the bead 11 was not present the device would nevertheless cling to the glass, but the entire area under the disk 6 would be below atmospheric pressure in which event the integrity of the joint between the perimeter of the disk 6 and the head 9 must be maintained. When the annular space 14, only, becomes subatmospheric, said joint will be maintained with greater fidelity as there will be less likelihood of a leak.

The soft rubber frame about the glass disk protects it from liability of breakage in the event that it should become accidently detached from its position on the windshield.

The enclosed area of the glass shield 12, underlying the disk 6. is protected from formation of frost from the moisture within the car and therefore its transparent prop erty remains unaffected.

Having described my invention what I claim as new and desire to secure by Letters Patent, is

. 1. A glare shield, for automobiles, comprising a disk of translucent material, and an enclosing frame of yielding resilient material, said frame comprising an annular head within which the disk is held, and a outwardly and laterally from the head, and

an lar b ad inside the skirt where it by to form asubatmosphcric space about the joins the head for contact with a flat surface disk between the edges of the skirt when the 10 when the skirt has been flattened. latter has been flattened against the glass of 2. A device of the character described, a windshield, and a rigid ring disposed in comprising a disk, a frame of soft, yielding, said frame beneath the edge of said disk.

resilient material in which the disk is se n testimony whereof I hereunto set my cured, said frame comprising a head and an handoutwardly and laterally curved skirt, where- CHARLES D. SYMMS. 

